Question: 1 . How does three - tier architecture improve scalability compared to two - tier architecture? 2 . What is replication? Why is it used?

1. How does three-tier architecture improve scalability compared to two-tier architecture?
2. What is replication? Why is it used? What benefit is derived from using it? What are the biggest potential problems?
3. What different design decisions do you make to access data rapidly in a centralized database compared to a distributed database?
4. What is a fat client? What is a thin client?
5. Explain how a star schema supports data analysis in a data mart and describe the role of the fact table and dimension tables.
1 . How does three - tier architecture improve

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